US1542597A - Suction cleaner - Google Patents

Description

Jun@ m w25, @542,597

A. H. BATES I SUCTION GLEANER Filed Nay 3.3, 1922 i2 SYasJwm-Sheat 2 nvrvi'or Aiber' H. Eaj'es.

Patented June 16, 1925*,

ALBERT H. BATES, OF ELGIN," ILLINOIS,

A 1,542,597 PATENT' OFFICE. k

ASSIGNOR, BY.` -MFSNE ASSIGNMENTS, T THE HOOVER COMPANY, 0F NORTH CANTON, OHIO, A CORPORATION 0F OHIO.

SUCTION CLEANER.

Application illed May 13, 1922. Serial No. 569,566.

To uit whom 'it may concern:

Be it known that I, ALBERT H. BATEs, a

citizen of the United States, residing at Elgin, in the county of'Kane and State of Iliinois, have invented certain new and uselul Improvements in Suction Cleaners, of which the following is a specification.

-My invention relates in general toimprovements in suction cleaners and in particularl to the hand-propelled, 'light-weight,"

motor-driven-brush type, and has for an ob.- jectv the provision of a compact, eiiicient, hand-controlled suction-cleaner capable of being adjusted to the particular requirements of different weights andtypes of ioor coverings without impairing the effectiveness of the machine.

Another object is to provide a suction- I cleaner of the 'type having more than. one

fan with a nozzle-mouth having uniform suction throughout its length and with new and improved means for securing dust-bag thereto.

A further object is to provide a suctioncleaner with a new and improved form of support.

Other objects will become apparent after .a study of the following description and appended claims, and in the drawings forming a part thereof, wherein like reference characters referto the same parts.

In the drawings: i

Figure 1 is a plan view of my invention with parts shown by dotted lines;v

Figure 2 is a side elevation of the same;

Figure 3 is La detail view of the b adapter plate; with the bag ring `attache thereto [tor-casing l0 inthe formof a h lindrical body provided at `each end with an adjustment; and

Figure 4 is a front elevation of my invention illustrating a modified form ofnozzle Figure 5 is a fragmentary plan view of the same.

`In the drawings, a preferred embodiment ofy my inventionis shown comprising a mool ow cyoutwardlv-flaring. flange 11 to which are secured the fan chambers 12, 12. Each fanA chamber encloses a fan-rotor 13 mounted on the motor-shaft y14.

/In order. to lend compactness to the machine, the bearings for the motor shaft. are mounted in bosses 15 extending into the fanchambers and received" in counter-bores mounted on 'one formed in the fan rotors. Each fan-chamber is providedwith an inlet opening 20 coaxial with the motor-shaft and fan-rotors and with 'a discharge-conduit 16 having a flanged terminus' 17 formin an outlet 18.`

Positioned on the outsi e o-f each fanchamber is a conduit 19 connecting with the inlet o ening 2O and extending downwardly and' orwardlyl along.Y the fan-chambers. Each conduit 1s provided with an aperture v21 registerin with the inlet-openings 20 in the fan-cham ers, which is normally closed by a plate 22 which is preferably secured to the conduit wall by means of a screw 23 engaging a resilient ear formed on the plate and a spring cli)` 23'.. Y

In order toa just the suction-nozzle relatively tothe rest of the machine and accordingly to the fioor upon which the machine' is supported, Ihaveprovided a separate casting 24, the forward end of which forms the suction-nozzle 25 and is provided with a suction-mouth 26 'formed in 'the bottom thereof and havin apertured ends adapted to receive adjusts. le brush-supporting devices 27, the details of which form no part of m resent invention.

ounted in the said brush-supporting de-y rovi'ded with,

vices is a rotatable brush 28 a ulley 29 over which is trained a' belt 30, w ich in turn is driven by a pulley 31 end of the motor-shaft 14. 1 'L In or er to connect the suction-nozzle 25 with the conduits 19,19, the casting 24, is'

provided with two hollow portions 32, 32, each of which dares forwardly in a symmetrical fashion so as to extend longitudinally at the forward end one-half the length of down travel the outer rear edge of each porf tion 32, 32, is provided with a flange 35 1 which contacts with the Voutside wall ofthe conduit 19 with which it connects. To insureatight joint between the meeting walls of the conduits 19, 19, and the portions 32,

32, of the casting 24, I have found it advantageous to provide. some positive means Afor producing a firm contact. Xs an example of one way in which this may be accomplished, I have shown the outside wall of each portion 32 formed with a boss 36 in which a pin 37 is firmlyv mounted.

The pin 37 extends v'through` a slot 38 formed in a .lug 39on the outside wall of -each conduit 19, and has secured -on the end thereof a nut 41 between `which and the lug suction-nozzle 25.

As a means 'for propelling the machine over a floor covering I have provided a handle 48 provided with a bail 49, each end of which is rotatably mounted on a pin 50 supported on the outside wall of the fanchamber and a flanged-member 51 mounted on and curved to conform with the conduit 19. In order that the front or rear .end of the machine can be raised as may be desired, or the handle locked in an upright position for convenience in storing, the anged member 51 is provided with notches 52 and 53 adapted to receive a pin 54 firmly fixed in the free end of a link 55 pivoted at 56 tol the handle bail. When the pin 54 is positioned in the notch 52 the handle will be locked in the upright position and may be stored in 'aminimum amount of space.

The notch 53' is of greater size and provides for an amount of play of the pin 54 therein corresponding to the angular movement of the handle during the normal operating of the machine'.

When it is desired to lower the handle toy a osition parallel with the ioor, the pin is li ted Ifrom the notch in which it happens to be, the link 55 hanging freely from the bail.

By rotating the link 55 in a counter-,clockwise direction until it lies above the pin 50, the entire controlling` mechanism may be 'thrown out of operation so that the p1n'54 cannot engage the notches 52 and 53.

For ease in emptying and for othery reason,

I itis desirable that the dust-collecting bag be made with but a single opening having relatively-lar'ge dimensionsl With this construction itis possible to ejectl the matted masses of dust, lint, )and litter that-are collected. fWith the construction shown, it is v possible to easily detach the bag from-the machine and place the bag ring ,onl a sheet of paperewhere it can beheld by the operators eet. In this position the bag can be .shaken in a cleanly manner since the collected dirt is prevented from scattering. In order to use a. bag of this construction in connection with a twin-fan -machine having two discharge-openings, I have provided an adapter plate 56 in the formy of a iiat member provided with two apertures 57, 57, adapted to register with the discharge openings 18, 18, and secured to the ianged termini 17, 17, by means of screws 58. This plate is provided at each end thereof with .an ear 59 composed o a portion 6U bent at right-angles to the main-body of the plate and a portion (il bentback parallel thereto, and to the inner surface of which is secured a leaf-spring 62 by means of the rivet 63. 'lfhe flange and spring co-act to guide and hold in position the bag-ring 64 which is in the form of 'a rectangular hollow frame provided with a flange 65 to which the bag (3G is clamped by means of the band 67.

Theadapter-plate 56 is further provided near each end with a resilient extension 68 terminating in a smoothly-polished convex portion 69 adapted to contact with the floor and support the rear end of the machine. The forward portion of the machine is supportedv by a resilient member 70 secured to the under side of each conduit 19 and provided with a convex-portion 71 adapted to contact with the 'floor coverings.

Figures 4 and 5 illustrate a suction cleaner with parts omitted and show a modified form of nozzle adjustment in which the forward side of each fan chamber is provided with a boss 72 in which is firmly ixeda pin 73 on which (is pivotally mounted a lever 74 one arm of which extends toward the center of the machine and is bifurcated at the end as at 75, the other end being slotted as at 76 to receive a pin 77 mounted in a boss on the top of'portion 32. y

Secured to the rear wall of the suctionnozzle 25 by means of screws 78 is a centrally screw-threaded block 79 adapted to receive a knurled-head thumb-screw 80, the stem portion of which passes through the overlapping bifurcated ends of the levers 74 and which operates to raise the suction-nozzle when the screw is turned into the block.

In order to assist gravity in returning the sation-nozzle to the lowest position, the screw 80 is surrounded by acompressionspring 81, one end. of which rests upon the block 79 .and the other abuts againstl a washer 82 positioned on the screw 80 below the bifurcated ends of the levers. This spring normally tendsto *force the nozzle to its lowermost position.

vI claim:

1. In a suction-cleaner, a motor, a pair of distinct suction-creating fans each having a separate inlet conduitn a suction-nozzle having a pair of discharge-conduits in m registry with said inletconduits respectively, said discharge and inlet conduits having complemental guide means to permit sliding movement of one with relation to the other, means for holding the ends of said discharge and inletscondnits together [in operative position, an adjusting screw, and means for connecting said screw with said nozzle land said' fan casing respectively to. ei'ect vertical adjustment ofsaid nozzle upon rotation of said screw.

2. In combination wlth a suction-cleaner a provided with two distinct suction-creating xdevices'each having an inlet-conduit, a clean; ing-nozzle provided with two dischargepassages arranged symmetrically with respect to the length thereof and registering with said inlet-conduits, said cleaning-nozzle being held resiliently in contactl with said inlet-conduits.

3. In combination with a suctionfcleaner provided with two distinct suction-creating devices, each having an inlet-conduit, a cleaning-nozzle provided with two discharge-passages arranged symmetrically with respect to the length thereof and registering with said inlet-conduits, the Y discharge-passages o said cleaning nozzle being provided with guides engagin the side-walls of saidinlet-conduits and ing capable of relative movement therewith.

v ALBERT H. BATES.

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